/*-
 * <<
 * Moonbox
 * ==
 * Copyright (C) 2016 - 2019 EDP
 * ==
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * >>
 */

package moonbox.grid.deploy.master

trait LeaderElectionAgent {
  	val candidate: LeaderElectable
  	def stop() {} // to avoid noops in implementations.
}

trait LeaderElectable {
  	def electedLeader(): Unit
  	def revokedLeadership(): Unit
}

class MonarchyLeaderAgent(val candidate: LeaderElectable)
  	extends LeaderElectionAgent {
		candidate.electedLeader()
}
